About-Loading-AutoLISP-Applications

About Loading AutoLISP Applications

    About Loading AutoLISP Applications

    AutoLISP files need to be loaded into AutoCAD before they can be used.

    AutoLISP applications are stored in editable ASCII text files with the .lsp extension. These files generally have a header portion that describes a routine,
    its use, and any specific instructions. This header might also include comments that
    document the author and the legal information regarding the use of the routine. Comments
    are preceded by a semicolon (;). You can view and edit these files with a text editor
    or word processor that can produce an ASCII text file.

    NOTE:Starting with AutoCAD 2014-based products, custom applications must work under secure
    mode; when the SECURELOAD system variable is set to 1 or 2. When operating under secure
    mode, the program is restricted to loading and executing files that contain code from
    trusted locations in the Support File Search Path; trusted locations are specified
    by the TRUSTEDPATHS system variable.

    Before you can use an AutoLISP application, it must first be loaded. You can use the
    APPLOAD command or the AutoLISP load function to load an application. Loading an AutoLISP application loads the AutoLISP
    code from the LSP file into your system’s memory. You must specify a relative support
    path in the Filename parameter if the LSP file is not located in the Support File
    Search Path.

    Loading an application with the load function involves entering AutoLISP code at the command prompt. If the load function is successful, it displays the value of the last expression in the file
    at the command prompt. This is usually the name of the last function defined in the
    file or instructions on using the newly loaded function. If load fails, it returns an AutoLISP error message. A load failure can be caused by incorrect coding in the file or by providing the wrong file
    name. The syntax for the load function is

    (load filename [onfailure])

    This syntax shows that the load function has two arguments: filename, which is required, and onfailure, which is optional. When loading an AutoLISP file at the Command prompt, you typically
    supply only the filename argument. The following example loads the AutoLISP file newfile.lsp.

    Command: (load “newfile”)

    The .lsp extension is not required. This format works for any LSP file in the current library
    path.

    To load an AutoLISP file that is not in the library path, you must provide the full
    path and file name as the filename argument.

    Windows

    Command: (load “d:/files/morelisp/newfile”)

    Mac OS

    Command: (load “/files/morelisp/newfile”)

    NOTE:When specifying a directory path, you must use a slash (/) or two backslashes ()
    as the separator, because a single backslash has a special meaning in AutoLISP.

    Learning AutoCad

    fore you can use an AutoLISP application, it must first be loaded. You can use the APPLOAD command or the AutoLISP load function to load an application. Loading an AutoLISP application loads the AutoLISP code from the LSP file into your system's memory.AutoLISP programs can be loaded and run from either the VLISP Console window or the AutoCAD Command prompt, or by choosing Tools Load …load an AutoLISP program in an open drawing.load an AutoLISP program is to include a load call in the ACADDOC.lsp. Everytime a new drawing is opened, AutoCAD will search the Support …about loading AutoLisp Routines is to ensure that your Lisp files and any support files (i.e DCL Files; DAT  …… Do you want to load and use AutoLISP application? See this basic tutorial.… The LISP code has to be loaded into AutoCAD . You can load ("install") a LSP, VLX or FAS file containing an add-on application or utility into …… I see where to load Lisp programs manually. I've got the appropriate directories in the search path.AutoLISP program runs inside (in the same workspace of) an open drawing. Therefore it is necessary to load the program in each individual …3 Feb 2013